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Fisher Controls Information Center
P.O. Box 8004
McKinney, TX 75069-8004


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www.emersonprocess.com/regulators
Engineered Pressure and Flow Control Solutions

Types 1808 and 1808A Relief Valve or Backpressure Regulator

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Types 1808 and 1808A Relief Valve or Backpressure Regulator

The Type 1808 globe-style and 1808A angle-style pilot-operated backpressure regulators or relief valves are economical, compact devices used in gas or liquid service to maintain pressure on oil and gas separators, and in pressure relief applications in gas distribution systems.

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Features
  • Simple, Reliable Design
  • Compact and Lightweight
  • Convenient Installation in any Position
  • Quick Disassembly
  • Optional External Registration for Reduced Buildup
  • High Capacity
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Body Size and End Connection Style
2-inch NPT screwed
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Maximum Relief (Inlet) Pressure
150 psig (10,3 bar), including buildup
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Relief Set Pressure Range
5 to 125 psig (0,34 to 8,6 bar)
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Wide-Open Sizing Coefficients
Type 1808: Cg 1410, Cv: 40.1, C1: 35.2
Type 1808A: Cg: 1808, Cv: 51.7, C1: 35
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Temperature Capabilities
-20 to 180°F (-29 to 82°C)
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Pilot Tubing and Connections
1/4-inch NPT with or without P590 Series Filter
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Options
Upstream control line construction
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Approximate Weight
1808: 22 pounds (10 kg)
1808A: 25 pounds (11 kg) 
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Additional Technical Data
For additional technical information, contact your Local Sales Office or refer to technical documentation.
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| Our Home Pages | My Page | About Us | Products/Literature | Pressurized Equipment Directive (PED)    | Support/Locator/Training | RFQ/Drawings | Technical Reference | What's New | Site Map | My Help |
Contacts:
    Telephone     Email     Write    

Within the US:
1-800-558-5853

Outside the US:
1-972-548-3574

Fax:
1-972-547-3712

Emerson Regulator Division Information Center
P.O. Box 8004
McKinney, TX 75069-8004




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